Method and a device for communication in a high voltage converte

Method and apparatus for a Reduced parts-counts multilevel...

Method and apparatus for control of static valve converter

Method and apparatus for converting a DC voltage to an AC...

Method and apparatus for decoupling the active and reactive powe

Method and apparatus for eliminating overmodulation in a power p

Method and apparatus for high frequency alternating current...

Method and apparatus for high-voltage D.C. transmission with a b

Method and apparatus for pre-charge control of VSI

Method and apparatus for pulse width modulation of a power suppl

Method and apparatus for resumption of normal operation of a hig

Method and apparatus for supplying contactless power

Method and apparatus for supplying uninterrupted power

Method and apparatus to avoid commutation failure in a regenerat

Method and apparatus to operate a high-voltage DC transmission s

Method and apparatus to operate an intermediate circuit converte

Method and apparatus to reduce common mode voltages applied...

Method and arrangement for controlling a high voltage d-c transm

Method and arrangement in connection with half-controlled...

Method and circuit arrangemeant for operating a high voltage dir